The Meter,electrical Frequency, cataloged under National Stock Number 6625-01-417-2840, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6625-01-417-2840 |
| Primary Part Number | 22-191 |
| Item Name | Meter,electrical Frequency |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp. |
| Status | ACTIVE |
| Indicator Type | DIGITAL DISPLAY |
| Circuit Attachment Method and Quantity | 1 CONNECTOR, RECEPTACLE |
| Meter Depth Behind Mounting Flange | 4.530 INCHES NOMINAL IN |
| Meter Body Height Behind Mounting Flange | 1.650 INCHES NOMINAL IN |
| Power Source | EXTERNAL |
| Style Designator | RECTANGULAR FLUSH MTG |
| Display Type | LIGHT EMITTING DIODE (L.E.D.). |
| Meter Body Width Behind Mounting Flange | 3.550 INCHES NOMINAL IN |
| Measurement Range | +45.000 TO 999.000 HERTZ SINGLE INDICATOR SINGLE RANGE |
| Installation Design | PANEL |
| Display Color | ORANGE AND RED SINGLE INDICATOR SINGLE RANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | YN |
| Weight | 4.0000 lbs |
| Cube | 0.4219 cu ft |
| Part Number | Manufacturer |
|---|---|
| 22-191 PRIMARY | Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp. (USA) |
| Reference | Meaning |
|---|---|
| 65A1-X20804 | 5/9 Secondary reference Beckman Industrial Corp Instrument Production Div Sub of Emerson Electric Co |
| 8734452 | 5/9 Secondary reference U.S. Government activity |
NSN 6625-01-417-2840 is a Meter,electrical Frequency, manufactured by Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp., classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-417-2840 has 1 manufacturer part number on file: 22-191 (Electro Switch Corp. Dba Arga Controls a Unit of Electro Switch Div Arga Controls a Unit of Electo Switch Corp.).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-431-8221, 6110-01-567-0417. Verify interchangeability with system specifications before substitution.
Key specifications for 22-191: Overall Height: 1.890 INCHES NOMINAL IN; Indicator Type: DIGITAL DISPLAY; Circuit Attachment Method and Quantity: 1 CONNECTOR, RECEPTACLE; Meter Depth Behind Mounting Flange: 4.530 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.